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  <script>
    var sum = ((23 + 5 * 5 * 5 * 5 * 5 * 5 * 5) / 45) * ((23 + 5 * 5 * 5 * 5 * 5 * 5 * 5) / 45);
    console.log(sum);
    //03-计算等式.html:13 3015856.7427160493
  </script>
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